public async Task <bool> ConnectAsync()
{
if (_state == GrpcConnectionState.Ready)
{
return(true);
}
_state = GrpcConnectionState.Connecting;
try
{
// default timeout = 5s
var deadLine = DateTime.UtcNow.AddSeconds(5);
await _internalChannel.ConnectAsync(deadLine);
_state = GrpcConnectionState.Ready;
_logger.Info($"Grpc channel connect success. [Server] = {_internalChannel.Target}");
}
catch (TaskCanceledException ex)
{
_state = GrpcConnectionState.Failure;
_logger.Warning($"Grpc channel connect timeout. {ex.Message}");
}
catch (Exception ex)
{
_state = GrpcConnectionState.Failure;
_logger.Warning($"Grpc channel connect fail. {ex.Message}");
}
return(_state == GrpcConnectionState.Ready);
}
public void Failure()
{
var currentState = _state;
if (GrpcConnectionState.Ready == currentState)
{
_logger.Debug($"Grpc channel state changed. {_state} -> {_internalChannel.State}");
}
_state = GrpcConnectionState.Failure;
}
public async Task ShutdowmAsync()
{
try
{
await _internalChannel.ShutdownAsync();
}
catch (Exception e)
{
_logger.Warning($"Grpc channel shutdown fail. {e.Message}");
}
finally
{
_state = GrpcConnectionState.Shutdown;
}
}
